KR101454025B1 - Method and device for playing the picture using the recording information - Google Patents

Abstract

The present invention relates to a video display device, and more particularly, to a video display device, which includes a step of storing a thumbnail image from a broadcast stream of a broadcast program to be recorded, a step of displaying a list of recordings by a user request, And displaying at least one of the N thumbnails and reproducing the selected thumbnail.

Video display device, thumbnail

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an apparatus and a method for reproducing video using recording information in a video display device,

The present invention relates to a video display device, and more particularly, to a method and apparatus for displaying and playing back recorded information using a thumbnail in a video display device.

Recently, the development and commercialization of a personal video recorder (PVR) product for recording / reproducing a TV broadcast by incorporating a storage medium such as a hard disk has become popular. These products are rapidly replacing existing VCR (Video Cassette Recorder) products with the full-scale digital broadcasting.

As the PVR product spreads, the user can store the desired program on the hard disk through scheduled recording (series recording, normal recording) / immediate recording of the desired program, and can view and play the recorded program at any time.

That is, the information of the pre-recorded recording program is displayed in the recording list, and if a specific recording is selected, the program is reproduced from the recording start point of the program.

However, in the conventional image reproducing method, when the user requests to reproduce a program, the program is reproduced from the point of time when the program is recorded, or the user has to move the reproduction time to an arbitrary point and reproduce it.

Also, if you play the recorded program again after finishing the program playback, you can play back from the beginning of the recorded program rather than after the previous one, or you have to move the specific button to a specific position The user has an inconvenience in viewing a recorded program.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to make it easy for a user to view a recorded program from a desired point in time of reproducing a recorded program.

It is also an object of the present invention to enable a user to easily confirm contents of a program through a thumbnail displayed on a list or on a playback screen.

As described above, the video display device according to the present invention includes a step of storing a thumbnail image from a broadcast stream of a broadcast program to be recorded, a step of displaying a list of recordings by a user request, Displaying the information of the corresponding record and N thumbnails, and reproducing at least one of the N thumbnails by selecting the N thumbnails.

In addition, the method may further include displaying a list of recordings according to a user request, selecting one of the recordings, and playing M thumbnails and images corresponding to the selected recordings.

The method includes the steps of: storing a thumbnail image from a broadcast stream of a broadcast program to be recorded; displaying a list of recordings by a user request; selecting one of the list of recordings and including N of the stored thumbnails, Selecting at least one of the N thumbnails to reproduce the corresponding recording, and displaying M thumbnails in an arbitrary area of the reproduction screen.

In addition, the video display device may further include a memory unit for storing a recording of a broadcast program received from the outside and storing a thumbnail of the broadcast program received at the time of recording, a list of the recorded recordings and corresponding thumbnails by a user request, A display module for reproducing an image corresponding to the selected record or thumbnail, a control for storing a recording and a thumbnail of a broadcast program received from the outside, a control for displaying a record and a corresponding thumbnail according to a user request, And controlling the selected image to be reproduced.

As described above, the present invention enables a user to easily grasp the contents of a recording, and has the effect of facilitating reproduction of a video from a point of time desired by a user.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

1 is a block diagram of a video display device to which an embodiment of the present invention is applied. Hereinafter, a video apparatus for implementing the embodiment will be described in detail with reference to FIG.

The video display device to which the present invention is applied may include a receiving unit 110, a processing unit 120, an output unit 130, a control unit 140, a storage unit 150, and an interface unit 170.

The receiving unit 110 may include an external signal input unit 111 and a tuner unit 112. The processing unit 120 includes an image / audio signal switching unit 121, an A / D converter 122, And a video memory unit 124. The output unit 130 may include a video signal output unit 131, a display module 132, a voice signal output unit 133, and a speaker 134.

The external signal input unit 111 receives an external signal received from an external device such as a digital versatile disk (DVD), a set top box, a camcorder, etc. and provides the signal to the video / audio signal switching unit 121

The tuner unit 112 tunes at least one channel according to a control signal of the controller 140 and decodes or separates video / audio / data signals received through the tuned channel, ). For reference, the data signal includes EPG (Electric Program Guide) information including information such as a start time end time of a broadcast program broadcasted on a channel.

The data signal can be decoded into data information by decoding. Control information of a program, which is at least a part of the information, is directly or indirectly transmitted to the control unit 140, and the control unit 140 broadcasts It is possible to search another channel on which the same content as the content being broadcast is being broadcast. The step of searching for another channel using the data information is the data use step.

The tuner unit 112 includes an analog tuner 112a for receiving an analog signal, a digital tuner 112d for receiving a digital signal, an analog decoder 112b (for example, an NTSC decoder) for decoding an analog signal, And a digital decoder 112e (e.g., a VSB decoder).

The video / audio signal output through the VSB decoder has the form of a transport stream (TS).

The video / audio signal switching unit 121 selects at least one channel among the channels provided from the external signal input unit 111 and the tuner unit 112 and separates the video / And provides it to the MPEG decoder and video / audio signal processing unit 123 and the like. The video / audio signal switching unit 121 may include a demultiplexer capable of separating video / audio / data signals.

When the signal selected by the video / audio signal switching unit 121 is an analog signal, the analog video signal is separated from the analog video signal by the A / D converter 122, And supplied to the MPEG decoder and the video / audio signal processing unit 123, and the analog audio signal can be provided to the audio signal output unit 133. When the signal selected by the video / audio signal switching unit 121 is a digital signal, both the video signal and the audio signal of the digital signal can be provided to the MPEG decoder and the video / audio signal processing unit 123.

The MPEG decoder and the video / audio signal processor 123 reconstruct the video / audio stream among the output signals of the video / audio signal switching unit 121 into video / audio data and processes the video / audio stream, And the processed voice signal is provided to the voice signal output unit 133. [0033] Also, the MPEG decoder and the video / audio signal processor 123 may mix the OSD data provided by the controller 140 and the restored and processed video signals.

The image memory unit 124 provides a memory area required for decoding and signal processing of the MPEG decoder and the video / audio signal processor 123. In particular, this portion and / or the control memory 151 may be used in a search step of finding another channel that broadcasts the same content. In order to compare the content identity of two or more channels when the symbol use step and the image comparison step are performed, Is used.

The video signal output unit 131 may include an LVDS receiver and the video signal output from the MPEG decoder and the video / audio signal processing unit 123 may be output through the display module 132 And the audio signal output unit 133 processes the audio signal output from the MPEG decoder and the video / audio signal processing unit 123 in such a form that the audio signal can be output through the speaker 134.

The interface unit 160 may be a local key button attached to, for example, a remote controller or a video device. The interface unit 160 receives various commands and information from a user, converts the command into information, and transmits the control signal to the controller 140. Among the commands inputted through the interface unit 160, in particular, the commands that are deeply related to the present invention, a function of receiving a signal for recording a corresponding program on a video signal received from the outside according to a user's request .

The interface unit 160 functions to receive a command to reproduce an image of a program stored in advance by a user request, and receives a signal for selecting and reproducing at least one of thumbnails displayed on a program list or a playback screen And to receive input.

The control unit 140 controls the tuner unit 112, the video / audio signal switching unit 121, the MPEG decoder and the video / audio signal processing unit 123 and controls other components of the video apparatus 100 And can be designed and interconnected. In addition, the controller 140 controls the controller 140 to extract and display the thumbnails according to the number N of thumbnails displayed on the recording list or the playback screen using the thumbnails stored during recording.

In addition, the control unit 140 controls to display a list of recordings according to a user's request, and controls to display recording information and N thumbnails for the selected recordings in the displayed list of recordings. In addition, the controller 140 according to the embodiment of the present invention controls the display of a predetermined number (M) of thumbnails at arbitrary positions on the playback screen when any one of the N thumbnails is selected, do.

When a command to reproduce an image of a program stored by a user request is input, a predetermined number of the extracted thumbnails are displayed in a list of pre-stored programs. In addition, the control unit 140 controls to display a corresponding program when a user selects one of the programs or a thumbnail of a specific program is selected.

The control unit 140 may store the video / audio signals output from the video / audio signal switching unit 121 and the MPEG decoder and the video / audio signal processing unit 123 in the memory unit 150, Audio signal to the MPEG decoder and the video / audio signal processor 123.

The memory unit 150 includes a control memory unit 151 and a data memory unit 152. The control memory unit 143 stores information input by the user and / or data generated and managed by the control unit 140. [ Therefore, according to the embodiment of the present invention, the control memory unit 151 stores information about the thumbnail extraction time set by the user. The data memory unit 152 stores a thumbnail corresponding to an image and an image of a program received from the outside according to a user request according to an embodiment of the present invention.

The operation of the image display apparatus according to the present invention will now be described.

First, when a power-on command is input through the interface unit 160, the controller 140 outputs a control signal through the tuner 112 such that a broadcast signal of a channel selected by the user among the broadcast signals input from the outside is selected.

Then, the tuner 112 outputs a broadcast signal of a channel selected by the user among the broadcast signals input from the outside according to a control signal of the controller 140. [ At this time, if a recording command is input through the interface unit 160, the control unit 140 controls the memory unit 150 to store the program, and at the same time, extracts a thumbnail of the program image, 150).

Then, the control unit 140 determines that the user has received the playback command for the recording stored in the memory unit 150 through the interface unit 160. The controller 140 displays the list of recorded recordings, Quot; thumbnail "

Thereafter, the controller 140 selects one of the displayed list of recordings or N thumbnails, controls the corresponding image to be played, and controls the M thumbnails of the displayed image to be displayed in an arbitrary area of the playback screen.

The extraction operation of the thumbnail stored in the above-described recording will be described in detail with reference to FIG.

The basic unit of the broadcast stream is a frame, which is independently reproducible in units of GOP (Group Of Picture), which is the minimum unit of section editing in which a plurality of frames (I / P / B PICTURE) are combined.

The thumbnail image decodes the first intra frame picture (I) frame included in the corresponding moving picture data to generate a thumbnail image, and displays the generated thumbnail image in the form of an icon view.

When any one of the thumbnail images displayed in the icon view form is selected, the selected thumbnail image is enlarged to a predetermined size, and at the same time, the key frame extracted from the moving image data is decoded in real time to generate a thumbnail image and the generated thumbnail image is reproduced, And the like.

The key frame is a frame used to help compress an image file. The key frame is used to select an I frame at a regular interval in a temporal image flow with reference to the corresponding image GOP structure, to designate it as a key frame, (I / B / P Frame), and designates a certain period as a key frame.

Such a key frame refers to a frame arrangement (I / B / P frame) capable of restoring and reproducing an I frame or an image of a certain section inserted at regular intervals in the MPEG series H.261, H264 or the like and capable of independent image reproduction, A frame to be independently reconstructed regardless of a moving image compression scheme, or a frame arrangement in which a reconstructed image can be predicted and reconstructed can all be defined as a key frame.

Here, the I frame is a frame encoded with only the picture information itself without prediction of the previous and next frames, and the P frame is a frame generated through prediction from the I picture or the previous P picture. And the B frame is a frame generated through bidirectional prediction of each of the I picture and the P picture.

Hereinafter, a thumbnail to be displayed on a recording list or a playback screen according to an embodiment of the present invention will be described using thumbnails stored at the time of recording a program as described with reference to FIG. 2 through FIGS. 3A and 3B.

3A, when a user inputs a command for performing a recording for a specific program and records the corresponding program, a number of thumbnails (not shown) stored in the memory unit 150 or the temporary buffer FIG. 2 is a diagram illustrating an example of extracting a thumbnail for displaying a list of recorded images or a playback screen. FIG.

For example, in the extraction of a thumbnail to be displayed in a list of recordings according to an embodiment of the present invention, in order to display N thumbnails in a list of the thumbnails generated at the time of recording stored in an arbitrary area (memory unit or temporary buffer) The playback time of the recorded material is balanced by N pieces, and the thumbnails extracted closest to the corresponding point in time are stored as thumbnails of the recording list.

That is, if the number of generated thumbnails is 100 as shown in FIGS. 3A and 3B, if the number of thumbnails to be displayed in the list of recordings is eleven, thumbnails of every ninth are extracted and thumbnails of # 9 to # 99 are generated and displayed . If the thumbnail to be displayed on the playback screen other than the list of recordings is M, M thumbnails are first extracted and displayed in a manner similar to the extraction operation of the thumbnail to be displayed on the recording list. Thumbnails to be displayed on the playback screen are preferentially displayed in M, and when there are M or more thumbnails, it is possible to display a display indicating that there are further thumbnail images such as arrows on both sides of the thumbnail list.

When a left / right key or the like is input from the user through the interface unit 170, the display is activated and the thumbnails can be sequentially displayed in the corresponding direction.

Hereinafter, the recording reproduction operation will be described in more detail with reference to FIGS. 4 to 6. FIG.

The control unit 140 of the video display device displays the video data stored in the memory unit 150 in a standby mode or displaying a specific video in step 410. In step 410, And displays the list of recordings including the information as a screen display example of FIG. 5A (step 420)

The control unit 140, when information about any one of the recordings is selected from the list of displayed recordings, is highlighted in the list of the corresponding recordings. The controller 140 includes N thumbnails as illustrated in FIG. .

In the embodiment of the present invention, as described above, thumbnails to be displayed on the recording list are set to 11, and the playback time of the recording is equally set to 11 to select images closest to the playback time of the equalized viewpoints and set them as thumbnails.

Accordingly, the extracted thumbnails are displayed, and if the displayed thumbnails are selected from the user in step 430, it is determined whether the selected thumbnails are one or a plurality of thumbnails.

If a plurality of thumbnails are selected as a result of the determination, the control unit 140 plays the thumbnail playback region repeatedly according to the set state.

On the other hand, if the selected thumbnail is one, the control unit 140 displays the recorded image from the reproduction time corresponding to the selected thumbnail (step 450). At this time, the screen of the recording reproduction includes a thumbnail of the recording in an arbitrary area Display. This will be described in more detail in FIG.

Also, the thumbnails selected from the user are highlighted through sizes, border colors, symbols, etc. so as to be distinguished from the unselected thumbnails.

In the present invention, a thumbnail is selected and a corresponding playback section is played back. However, in the present invention, playback from the beginning of a recording through the general selection of a recording is also similar to a normal playback operation Do.

5A and 5B, the control unit 140 selects a recording material or a thumbnail corresponding to the selected recording material, and displays a predetermined region of the reproduction screen, in the embodiment of the present invention, To display M thumbnails.

For example, if 10 thumbnails are displayed on the playback screen according to the embodiment of the present invention, thumbnails are extracted from the thumbnail pool as shown in FIG. 2 at predetermined intervals, and ten thumbnails are displayed on the playback screen do. And an indication that there are more thumbnails at both ends of the area where the thumbnail is displayed when the extracted thumbnails are 10 or more.

In addition, the corresponding thumbnail may be highlighted and displayed in the corresponding playback section of the currently playing recording, and the thumbnail may be highlighted to be correspondingly displayed as the playback section is moved. Also, it is possible to display information including the time information of the corresponding reproduction time to be displayed.

If a plurality of thumbnails are selected from the user in the operation flowchart of FIG. 4, the section of the thumbnail is repeated (repetitively) as shown in FIG. 6A, or the predetermined section of the thumbnail is selected to reproduce the section .

As described above, according to the embodiment of the present invention, N thumbnails are displayed for a recording selected from a user in a list of thumbnails, and when one of the N thumbnails is selected, the corresponding thumbnail is reproduced.

The M thumbnails are displayed on the playback screen of the selected thumbnails, and the thumbnails are flexibly variable according to the screen being played, and the thumbnails can be highlighted and displayed.

Although not shown, the user selects a desired point in time during recording of the video material or during playback of the recorded material, sets the image at that point of time as a thumbnail, and when displaying a list of thumbnails in the recording list or the recording screen, And display it.

1 is a block diagram of a video display device to which the present invention is applied.

2 is a view for explaining a basic unit of a broadcast stream (MPEG2);

3A to 3B illustrate an example of a thumbnail extraction operation for a thumbnail display according to an embodiment of the present invention;

FIG. 4 is a flowchart of a recording playback operation according to an embodiment of the present invention; FIG.

5A is an illustration of a recording list display screen according to an embodiment of the present invention

5B illustrates an example of a screen in which a recording is selected from a recording list.

FIG. 5C is an exemplary view of a playback screen for the selected recording material in FIG. 6B; FIG.

FIG. 6 is an exemplary diagram illustrating a playback operation through a thumbnail according to an embodiment of the present invention; FIG.

Description of the Related Art

110: Receiving unit 111: External signal input unit

112: tuner unit 120:

121: video / audio signal switching unit 122: A / D converter

123: MPEG decoder and video / audio signal processor

124: image memory unit 130: output unit

131: video signal output unit 132: display module

133: audio signal output unit 134: speaker

140: control unit 150: memory unit

160:

Claims (25)

A video reproducing method using video recording information in a video display device, Storing a thumbnail image from a broadcast stream of a broadcast program to be recorded; Displaying a list of recordings based on user input; Receiving a selection of any one of the recordings; Displaying at least one thumbnail image for the selected recording; Receiving a selection of at least one displayed thumbnail image; Determining whether the selected thumbnail image is a plurality of thumbnail images; And And reproducing the selected recordings based on the determination result A method of reproducing an image using recording information in a video display device. The method according to claim 1, The step of reproducing the selected recording material based on the determination result And if the selected thumbnail image is not a plurality of thumbnail images, playing the selected recorded material from a playback time corresponding to the selected thumbnail image A method of reproducing an image using recording information in a video display device. The method according to claim 1, The step of reproducing the selected recording material based on the determination result And if the selected thumbnail image is a plurality of thumbnail images, reproducing the selected recorded material for a playback section corresponding to the plurality of thumbnail images A method of reproducing an image using recording information in a video display device. The method according to claim 1, The step of reproducing the selected recording material based on the determination result And if the selected thumbnail image is a plurality of thumbnail images as a result of the determination, repeatedly reproducing the selected recorded material for a playback section corresponding to the plurality of thumbnail images A method of reproducing an image using recording information in a video display device. The method according to claim 1, Wherein displaying at least one thumbnail image for the selected recording comprises: Displaying a plurality of thumbnail images for the selected recordings and indicating that there are more thumbnail images for the selected recordings on both sides of the displayed plurality of thumbnail images A method of reproducing an image using recording information in a video display device. The method according to claim 1, The selected thumbnail image is highlighted and displayed A method of reproducing an image using recording information in a video display device. A video reproducing method using video recording information in a video display device, Displaying a list of recordings based on user input; Receiving a selection of any one of the recordings; Displaying at least one thumbnail image of the selected recording, and playing the selected recording; Receiving a selection of at least one displayed thumbnail image; Determining whether the selected thumbnail image is a plurality of thumbnail images; And And reproducing the selected recordings based on the determination result A method of reproducing an image using recording information in a video display device. 8. The method of claim 7, Displaying at least one thumbnail image for the selected recording, and playing the selected recording Displaying a thumbnail image corresponding to a playback section of a recorded picture played back from among the displayed at least one thumbnail image by highlighting and reproducing the thumbnail image; A method of reproducing an image using recording information in a video display device. 8. The method of claim 7, The step of reproducing the selected recording material based on the determination result And if the selected thumbnail image is not a plurality of thumbnail images, playing the selected recorded material from a playback time corresponding to the selected thumbnail image A method of reproducing an image using recording information in a video display device. 8. The method of claim 7, The step of reproducing the selected recording material based on the determination result And if the selected thumbnail image is a plurality of thumbnail images, reproducing the selected recorded material for a playback section corresponding to the plurality of thumbnail images A method of reproducing an image using recording information in a video display device. 8. The method of claim 7, Displaying at least one thumbnail image for the selected recording, and playing the selected recording Displaying a plurality of thumbnail images for the selected recordings and indicating that there are more thumbnail images for the selected recordings on both sides of the displayed plurality of thumbnail images A method of reproducing an image using recording information in a video display device. 12. The method of claim 11, The step of indicating that there is more thumbnail images for the selected recording And sequentially displaying the displayed thumbnail image in response to the received input when receiving an input for a direction key moving from the user to the left or right, A method of reproducing an image using recording information in a video display device. A video display device comprising a storage unit, Storing a thumbnail image from a broadcast stream of a broadcast program to be recorded; Displaying a list of recordings by a user request; Selecting one of the recordings and displaying the information of the corresponding record and N thumbnails of the stored thumbnails; Selecting at least one of the N thumbnails, playing the corresponding recording, and displaying M thumbnails in an arbitrary area of a playback screen, and displaying the selected thumbnails. 14. The method of claim 13, wherein the thumbnail image is stored at predetermined time intervals during the broadcast program recording. 14. The video display device according to claim 13, wherein the N thumbnails displayed on the recording list are obtained by extracting thumbnails close to the equalized reproduction time by equating the N reproduction times of the stored thumbnail images to N, A method of reproducing an image using recording information. The method as claimed in claim 13, wherein the thumbnail displayed on the playback screen displays M of the stored thumbnail images and displays a display indicating whether or not a thumbnail exists on both sides of the M thumbnail list displayed. A method of reproducing an image using recording information on a display device. The method as claimed in claim 13, wherein, when two thumbnails among the N thumbnails displayed in the list of recordings are selected, the playback of the corresponding thumbnails is performed. The method as claimed in claim 13, wherein when one of the thumbnails displayed on the playback screen is selected, the selected thumbnail is selected and played back. 14. The method of claim 13, wherein the thumbnail displayed on the playback screen is displayed by highlighting a thumbnail including the playback duration according to the playback screen. A video reproducing apparatus using video recording information in a video display device, A memory unit for storing a recording of a broadcast program received from the outside and a thumbnail image of the recording; A display module for displaying a list of recorded recordings based on user input and a thumbnail image corresponding to the list of recordings; And a controller for determining whether the thumbnail image selected based on the selection of the thumbnail image corresponding to the list of the recordings is a plurality of thumbnail images and reproducing the recordings corresponding to the selected thumbnail image based on the determination result A video reproducing apparatus using video recording information in a video display device. 21. The method of claim 20, The control unit As a result of the determination, if the selected thumbnail image is not a plurality of thumbnail images, the recording is played from a playback time corresponding to the selected thumbnail image A video reproducing apparatus using video recording information in a video display device. 21. The method of claim 20, The control unit If the selected thumbnail image is a plurality of thumbnail images, the playback apparatus reproduces the recorded image corresponding to the plurality of thumbnail images A video reproducing apparatus using video recording information in a video display device. 21. The method of claim 20, The memory unit A thumbnail image other than a thumbnail image displayed corresponding to the list of the recordings among the thumbnail images of the recording is not stored A video reproducing apparatus using video recording information in a video display device. 21. The method of claim 20, The control unit If it is determined that the selected thumbnail image is a plurality of thumbnail images, the playback apparatus repeatedly reproduces the recorded image corresponding to the plurality of thumbnail images A video reproducing apparatus using video recording information in a video display device. 21. The method of claim 20, The control unit If a selection of one of the thumbnail images displayed on the display module is input during playback of the recorded material, the selected thumbnail image is switched to an image corresponding to the selected thumbnail image A video reproducing apparatus using video recording information in a video display device.

Images